Mike Pence proposed an electroshocks treatment. I think that this might be a possibility. There must be something that gets activated in the brain or that do not work correctly, so we might also fix this.
This generation is not possible already to return to reason. Propaganda destroys the ability to think. You can only re-grandchildren. The same situation in Russia. Propaganda is doing its job and people believe that the life of a slave is normal.
So you would kill them all ? I would not be against this proposition, as they can turn other people to their illness. This means that they are a danger in themselves.